REPLACEMENT OF VINTAGE CI/GI PIPES AND ALLIED INFRA AT ROWARIAH IN JORHAT MIL STATION

Amount

Taking up cast iron water mains (including all fittings), 150 mm nominal size, with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Taking up cast iron water mains (including all fittings), 100 mm nominal size, with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Taking up cast iron water mains (including all fittings), 80 mm nominal size, with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Taking up or down 80 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 40 mm or 50 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 25 mm or 32 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 20 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Supplying & laying in trenches 150 mm nominal dia ductile iron pressure pipe for water mains, centrifugally cast, spigot and socket ends (for push on joints), class K9 in any length complete all as specified and as directed. Note- Rubber gasket joints (push on joints) shall be measured and paid separately.

Supplying & laying in trenches 100 mm nominal dia ductile iron pressure pipe for water mains, centrifugally cast, spigot and socket ends (for push on joints), class K9 in any length complete all as specified and as directed. Note- Rubber gasket joints (push on joints) shall be measured and paid separately.

Supplying & laying in trenches 80 mm nominal dia ductile iron pressure pipe for water mains, centrifugally cast, spigot and socket ends (for push on joints), class K9 in any length complete all as specified and as directed. Note- Rubber gasket joints (push on joints) shall be measured and paid separately.

Supplying & laying in trenches 80 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 50 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 40 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 25 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in wall/trenches 20 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

S & F in repairs 50 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 40 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 25 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 20 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 150 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 100 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 80 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 50 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 40 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 200 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 150 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 100 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves (ISI Marked)having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 80 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark. complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 20 mm to 40 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations including taking down old filter media complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 12 mm to 20 mm inside existing rapid gravity filter / pressure filter at different locations including taking down old filter media complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 6 mm to 12 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations including taking down old filter media complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 3 mm to 6 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations including taking down old filter media complete all as specified and as directed.

Materials and labour for filling / topping up filtration media sand, effective size 0.35 mm to 0.50 mm, hard and resistant quartz or quartzite, free from clay, fine particles, soft grains and dirt of every description, as per IS 8419 part-I 1977, inside existing rapid gravity filter/ pressure filter at different locations including taking down old filter media complete all as specified and as directed.

Materials and labour for filling / topping up Magnese dioxide (MnO2) (FERRIMENIX COMPOUND) media approx size 20mm-24mm with MnO2 content of minimum 65% inside existing aeration tower/Oxidation Chamber including taking down complete all as specified and directed.

Materials and labour for filling / topping up carbofelt compound/Anthracite Cole, hard compact variety of Coal, having submetallic test use with carbon content between 92.1% and 98% media inside existing aeration tower/Oxidation Chamber including taking down complete all as specified and directed.

M & L for construction of new valve chamber of size 900 mm X 900 mm X 900 mm with necessary brick work (subclass B) in CM 1:4, including necessary earth work in any type of soil, PCC foundation (1:4:8) type D-2, 40 mm grade stone aggregate as in base concrete, brick work in CM 1:4 with 15 mm thick plaster internally and externally including 15cm below ground level externally on all sides, 3.15 mm thick MS cover with hinges and locking arrangement fixed to angle iron frame made out of 40 mm X 40 mm X 6 mm MS angles complete with 2 coats of synthetic enamel paint over one coat of red oxide prime on all metal works & three coats of white wash on all plastered surfaces of valve chambers complete all as specified & directed by Engineer-in-Charge.

M & L for construction of new valve chamber of size 600 mm X 600 mm X 600 mm including necessary earth work in any type of soil, PCC foundation M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate as in base concrete, brick work (one and half brick thick) in CM 1:6 with 20 mm thick cement plaster internally and externally in two coats of (12 mm and 8 mm) in cement mortar 1:4, 100 mm thick RCC cover in M15 (Nominal mix) using 20 mm nominal size graded crushed stone aggregate reinforced with 8 mm dia TMT bars both ways @ 150 mm c/c spacing, handle made with 10 mm dia bar bent in shape of channel with outside projection (100 mm X 200 mm X 200 mm) embedded in RCC, 100 mm thick flooring in PCC M7.5(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate over 75 mm thick hardcore, painting exposed steel surfaces with two coats of bituminous paint and embedded surfaces of steel with two coats of tar, finishing exposed faces of concrete surfaces and plaster surfaces with three coats of white wash as per drawing No. TD/EM/6 sheet Nos 1/2 & 2/2 of HQ CE Shillong Zone complete all as specified and as directed.

Designing, supplying, installing, testing and commissioning Activated Carbon Filter chamber of flow rate of 46 m³ per hour (10000 gallon per hour), vessel dia and height as per design calculation of Original Equipment Manufacturer (OEM), shell thickness minimum 8 mm and as per design calculation of Original Equipment Manufacturer (OEM), disc thickness minimum 10 mm and as per design calculation of Original Equipment Manufacturer (OEM), design pressure 3.5 Kg per cm², backward frequency when DP more than 0.6 Kg per cm², filled with media of granular activated carbon (IV450), course silex, filtering sand, crushed gravels, including internal and external painting, including inlet header and bottom concrete with header and lateral arrangement and bottom concrete, including frontal piping with UPVC, including required numbers of butterfly valves, pressure gauges, foundation, testing, flow indicator etc. all as per Original Equipment Manufacturer's (OEM) instructions, all as specified and as directed.

Supply, installation, testing and commissioning High pressure multicavity water sanitiser/conditioning station with proportional dosing arrangement at zero discharge of the following specifications and directed: (a) MOC: Non-Metallic, Maximum Temperature: 45 degree Centigrade, Operation: Power-free Automatic, Dosing pattern: Proportional, Capacity: 100 litres to 200 litres, Tank lid must have provision for mounting dosing pump on the lid/wall, Cavities are complete with lids, Attachments: (i) Overflow Valve, (ii) Water inlet Valve, (iii) Outlet valve (for offline automated gravity flow) (iv) Drain Valve, complete all as specified and directed

Supply only refill chlorine tablets contained in plastic cylindrical sealed disposable sanitiser refill for disinfection of drinking water, suitable for operation through recommended closing system, (i) Replacement indication: visual & weight variation (ii) Cylinder dia: 2.5 inches + 0.5 inches height: Minimum 10.0 inches + 0.5 inches (iii) Operational stipulations: (a) Heavy metal (Pb & Hg) contamination in the product media must be BDL as per AAS data (b) Minimum volume of water disinfected by each Chlorine tablets Refill to obtain disinfection activity of 1 ppm on spot (influent water quality variation, ambient & site condition variations apply) (c) The refills must ensure infrastructural safety (as per date generated by Electrolytic Conductivity (µs/cm) test protocal) and operators health safety (f) Chlorine tablets Refill must be complaint with operator health safety considering regular exposure, complete all as specified and directed

Supplying, installing, testing and commissioning digital water level indicator on digital display and including taking down old u/s indicator, for OH PS/RCC water reservoir having staging height, with SCADA compatibility, wall mounted, fibre body, based on C Moss Technology, to display exact water level complete all as specified and as directed.

S & F flanged reflux valve (non-return) of single door, swing check type nominal pressure (PN 1.6) of preferred materials as per IS 5312 (Part 1): 2004, nominal size 100 mm complete all as specified and as directed.

Supply & fixing PVC strainers Y type conforming to IS, size 100,, dia and taking out old u/s one. complete all as specified & directed.

Supply and fix Cast Iron Air Valves with single air Outlets, conforming to IS 14845 of size 150 mm dia bore and fixing up in Cast Iron/ ductile iron Water supply mains of size 150 mm dia with all fittings including taking down of old unserviceable one, all as specified and as directed.

Supply and fix Cast Iron Air Valves with single air Outlets, conforming to IS 14845 of size 100 mm dia bore and fixing up in Cast Iron/ ductile iron Water supply mains of size 100 mm dia with all fittings including taking down of old unserviceable one, all as specified and as directed.

Supply and laying ductile iron fittings (ISI marked) as per IS 9523:2000 (reaffirmed 2005)) for spigot socketed pipes such as bends (any type radius and angle), tapers any type (straight, bends, increasing, decreasing or double socket etc.), tee pieces, single branch, 'Y' junction, double branch, cross (all sockets or socket and spigot), collars, caps and plugs suitable for bore of pipe up to 150 mm complete all as specified and as directed.

M & L for cement concrete in foundation, filling and mass concrete in M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

Construction of the supporting arrangement with 100 mm GI pipe medium grade as pillar and angle work ISA 50x50x6 mm duly welded to a minimum height of 5.0 meter above GL for fixing up chain pulley for pull out the column pipe from bore well in case of failure of whenever required, GI pipe shall be grouted in PCC M15 (Nominal Mix) using 20 mm nominal size graded crushed stone aggregate to a minimum 1.0 meter depth with angle iron frame embedded in GI pipe including painting with two coat of synthetic enamel paint of a coat of red oxide primer after preparing the steel surface and necessary earth work complete all as specified and directed by Engineer-in-Charge .

M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 25 mm X 4 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge.

S & F hot rolled medium and high tensile structural steel of grade E 250 quality A conforming to IS 2062: 2011 as in joist, channel, angle, or tee sections, fixed independently, without connecting plates, etc. (cut to ordinary lengths i.e. within 20 mm of the length indicated) complete all as specified and as directed.

S & F hot rolled medium and high tensile structural steel of grade E 250 quality C conforming to IS 2062: 2011 as in plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

M & L for boring under road, pavement, hard standing, by trenchless technology using latest boring technique and necessary machine including insertion of HDPE/DI/GI pipe of 100 to 150mm dia complete all as specified and as directed.

M & L for boring under road, pavement, hard standing, by trenchless technology using latest boring technique and necessary machine including insertion of HDPE/DI/GI pipe upto 80 mm dia complete all as specified and as directed.

M & L for rubber gasket joints (push on joints) for spigot/socket end ductile iron water mains/ductile iron specials complete for 150 mm nominal dia complete all as specified and as directed.

M & L for rubber gasket joints (push on joints) for spigot/socket end ductile iron water mains/ductile iron specials complete for 100 mm nominal dia complete all as specified and as directed.

M & L for rubber gasket joints (push on joints) for spigot/socket end ductile iron water mains/ductile iron specials complete for 80 mm nominal dia complete all as specified and as directed.

M/S PAUL CONSTRUCTION

KAY CEE CO. INDIA

Garg Brothers

M/S DB TRADING CO

M/S AK SINGH

HAMTECH ENGINEERING PRIVATE LIMITED